/Engine/Source/Runtime/GeometryCore/Public/OrientedBoxTypes.h
Call CornerPointFunc(FVector3) for each of the 8 box corners. Order is the same as GetCorner(X). This is more efficient than calling GetCorner(X) because the Rotation matrix is only computed once.
template<typename PointFuncType> void EnumerateCorners ( PointFuncType CornerPointFunc ) const